ADBannerView问题

Question

我在我的所有viewcontroller页面上都有这段代码来控制跨多个页面的AdBanner。它在我的应用程序的最后一个版本上正确工作，但是由于某些原因，我认为我的应用程序没有调用bannerViewDidLoadAd或didFailToReceiveAdWithError函数。而且，当我经常更改页面时，我会得到这个错误。`

警告:目前存在10多个ADBannerView或ADInterstitialView实例。这是对iAd API的滥用，广告性能将因此受到影响。此消息只打印一次。

“”有什么东西我遗漏了吗？谢谢

// Ad controller

var UIiAd: ADBannerView = ADBannerView()
var screenHeight = UIScreen.mainScreen().bounds.height
var adBannerHeight: CGFloat = 50
@IBOutlet var constOne: NSLayoutConstraint!

func appdelegate() -> AppDelegate {
    return UIApplication.sharedApplication().delegate as! AppDelegate
}

override func viewWillDisappear(animated: Bool) {
    UIiAd.delegate = nil
    UIiAd.removeFromSuperview()
}

func bannerViewDidLoadAd(banner: ADBannerView!) {
    UIView.beginAnimations(nil, context: nil)
    UIView.setAnimationDuration(1)
    UIiAd.alpha = 1
    adBannerHeight = 50
    UIView.commitAnimations()
    constOne.constant = 58
    print("ad loaded")
}

func bannerView(banner: ADBannerView!, didFailToReceiveAdWithError error: NSError!) {
    UIView.beginAnimations(nil, context: nil)
    UIView.setAnimationDuration(1)
    UIiAd.alpha = 0
    adBannerHeight = 0
    UIView.commitAnimations()
    constOne.constant = 8
    print("error")
}

override func viewWillAppear(animated: Bool) {
    UIiAd.delegate = self
    UIiAd = self.appdelegate().UIiAd
    UIiAd.frame = CGRectMake(0, screenHeight - adBannerHeight , 0, 0)
    self.view.addSubview(UIiAd)

}

// End of Ad Controller

Answer 1

尝试更改以下代码：

override func viewWillDisappear(animated: Bool) {
    UIiAd.delegate = nil
    UIiAd.removeFromSuperview()
}

至：

override func viewWillDisappear(animated: Bool) {
     UIiAd.removeFromSuperview()
     UIiAd.delegate = nil
}